{"id":161780,"date":"2023-01-25T07:16:57","date_gmt":"2023-01-25T07:16:57","guid":{"rendered":"\/knowledge\/forums\/topic\/why-does-ansys-fluent-report-a-floating-point-exception-at-the-first-iteration-when-working-with-the-non-equilibrium-thermal-model-for-porous-cell-zones-netm\/"},"modified":"2023-07-31T12:35:53","modified_gmt":"2023-07-31T12:35:53","slug":"why-does-ansys-fluent-report-a-floating-point-exception-at-the-first-iteration-when-working-with-the-non-equilibrium-thermal-model-for-porous-cell-zones-netm","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-does-ansys-fluent-report-a-floating-point-exception-at-the-first-iteration-when-working-with-the-non-equilibrium-thermal-model-for-porous-cell-zones-netm\/","title":{"rendered":"Why does ANSYS Fluent report a floating point exception at the first iteration when working with the non-equilibrium thermal model for porous cell zones (NETM)?"},"content":{"rendered":"<p>The non-equilibrium thermal model (NETM) for porous zones in ANSYS Fluent requires the porosity to be smaller than 1 which is the default value. If you forget to adjust this value the solution diverges in the first iteration. Fluent also prints a warning after activating the model to remind you that this value must be adjusted.<\/p>\n","protected":false},"template":"","class_list":["post-161780","topic","type-topic","status-publish","hentry","topic-tag-4391","topic-tag-conjugate-heat-transfer","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-general","topic-tag-heat-transfer-and-radiation","topic-tag-heat-transfer","topic-tag-radiation"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"The non-equilibrium thermal model (NETM) for porous zones in ANSYS Fluent requires the porosity to be smaller than 1 which is the default value. If you forget to adjust this value the solution diverges in the first iteration. 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